'Set cover' presentation slideshows

Dynamic and Online Algorithms:

Dynamic and Online Algorithms:. Anupam Gupta Carnegie Mellon University Based on joint works with: Albert Gu, Guru Guruganesh, Ravishankar Krishnaswamy, Amit Kumar, Debmalya Panigrahi, Cliff Stein, and David Wajc. Dynamic (and) Online Algorithms: a little change will do you good.

951 views • 50 slides

Optimization problems

Optimization problems. INSTANCE FEASIBLE SOLUTIONS COST . Vertex Cover problem. INSTANCE graph G FEASIBLE SOLUTIONS S ? V, such that ( ? e ? E) S ? e ?0 COST c(S) = |S|. Set Cover problem. INSTANCE family of sets A 1 ,...,A n ? ? FEASIBLE SOLUTIONS

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More approximation algorithms for stochastic programming programs

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Approximation Algorithms

Approximation Algorithms. Chapter 1- Introduction. Why Approximation Algorithms. Problems that we cannot find an optimal solution in a polynomial time Eg: Set Cover, Bin Packing Need to find a near-optimal solution: Heuristic Approximation algorithms:

657 views • 44 slides

DATA MINING LECTURE 13

DATA MINING LECTURE 13. Absorbing Random walks Coverage. ABSORBING RANDOM WALKS. Random walk with absorbing nodes. What happens if we do a random walk on this graph? What is the stationary distribution? All the probability mass on the red sink node: The red node is an absorbing node.

553 views • 44 slides

Manipulation in Games

Manipulation in Games. Raphael Eidenbenz Yvonne Anne Oswald Stefan Schmid Roger Wattenhofer. D istributed C omputing G roup. ISAAC 2007 Sendai, Japan December 2007. Manipulation in Games. Raphael Eidenbenz Yvonne Anne Oswald Stefan Schmid Roger Wattenhofer. also present

551 views • 44 slides

Minimization of DNF Formulas Given a Truth Table

Minimization of DNF Formulas Given a Truth Table. Lisa Hellerstein Polytechnic University Brooklyn, NY Joint with Eric Allender (Rutgers), Paul McCabe (Toronto), Toniann Pitassi (Toronto), and Michael Saks (Rutgers) [CCC 2006]. MinDNF Problem. Given a truth table, find minimum DNF formula.

530 views • 37 slides

Analysis of Algorithms CS 477/677

Analysis of Algorithms CS 477/677. Instructor: Monica Nicolescu Lecture 24. NP-Completeness. A problem B is NP-complete if: 1) B ? NP 2) A ? p B for all A ? NP If B satisfies only property 2) we say that B is NP-hard

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Inapproximability of the Smallest Superpolyomino Problem

Inapproximability of the Smallest Superpolyomino Problem. Andrew Winslow Tufts University. Polyominoes. Colored poly-squares . (stick). Rotation disallowed. (stick). Smallest superpolyomino problem. Given a set of polyominoes : Find a small superpolyomino :. (stick).

427 views • 32 slides

Approximation Algorithms for Stochastic Optimization

Approximation Algorithms for Stochastic Optimization. Chaitanya Swamy Caltech and U. Waterloo Joint work with David Shmoys Cornell University. Stochastic Optimization. Way of modeling uncertainty .

481 views • 32 slides

The Theory of NP-Completeness

The Theory of NP-Completeness. Nondeterministic algorithms. A nondeterminstic algorithm consists of phase 1: guessing phase 2: checking

1.36k views • 31 slides

Research Topics in Information Systems and Services

Research Topics in Information Systems and Services . Lipyeow Lim Assistant Professor Information and Computer Sciences. Agenda. Information Systems & Services Focus Area Overview, Faculty & Resources Secondary Exam Primary Exam Research topics

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Algorithms for Max-min Optimization

Algorithms for Max-min Optimization. Anupam Gupta Carnegie Mellon University based on works with Viswanath Nagarajan (IBM Watson) and R.Ravi ( CMU), Aaron Roth (MSR/Penn), Grant Schoenebeck (Princeton), and Kunal Talwar (MSR). maximization problems. Given : universe U of elements.

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Lecture 27 Set Cover & LP-Relaxation

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Input-Dependent and Asymptotic Approximation

Input-Dependent and Asymptotic Approximation. Summary. Approximation algorithm for graph coloring Approximation algorithm for set cover Asymptotic approximation scheme for edge coloring. Approximation of graph coloring.

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Output URL Bidding

Output URL Bidding. Panagiotis Papadimitriou , Hector Garcia-Molina, (Stanford University) Ali Dasdan , Santanu Kolay ( Ebay Inc). Search Engine Results Page (SERP). Query. Sponsored Ads. Sponsored Search Ads. Organic Results. Keyword bidding. Advertiser. Search Engines. KEYWORDS.

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NP-Complete

NP-Complete. Proof of correctness; More reductions. Definitions. P: problems that can be solved in polynomial time (typically in n , size of input) on a deterministic Turing machine Any normal computer simulates a DTM

668 views • 20 slides

Y.Tabata 1 , T.Kuroda 2 and K.Okamoto 2 1 Kyoto College of Medical Science

ICDVRAT2012. Development of a glove-type input device with the minimum number of sensors for Japanese finger spelling. Y.Tabata 1 , T.Kuroda 2 and K.Okamoto 2 1 Kyoto College of Medical Science 2 Kyoto University Hospital. Communication barrier of the hearing impaired.

280 views • 20 slides

Binary Clustering with Missing Values (BCMV)

Binary Clustering with Missing Values (BCMV). 作者 : A. Figueroa, J. Borneman , T. Jiang 報告人 : 劉效飛. N. N. Problem Formulation. 1. 兩個 vector 怎 樣才叫相似 ? Def: 沒有任何一個位置是互斥的， 則稱為相似 i.e. 將 每一個 vector 看成指紋採樣， 則兩個指紋採樣可能是同一個犯人所留下 Ex: (1 0 N N 1) , (1 N 1 0 1) are similar

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FPGA IMPLEMENTATION OF A GREEDY ALGORITHM FOR SET COVERING

220 views • 1 slides